1. use esp_timer instead of FreeRTOS timer to implement osi_alarm in bluedroid
2. Remove two APIs: osi_alarm_now() and osi_alarm_time_diff() and modify the hci layer logic that use them
3. Implement osi_alarm_get_remaining_ms()
4. Move the definition of struct alarm_t in source file "alarm.c"
5. Add definition of module error code
1. remove GKI(not use osi_free_and_reset)
2. modify mutex/semaphore to individual directory
3. set osi_malloc as malloc(previously use calloc)
4. change osi allocator debug osi_free
5. fix rebase of remove GKI
